More De Revolutionibus Chord Diagrams

I did some additional fiddling with the information I pulled out of Gingerich’s An Annotated Census of Copernicus’s De Revolutionibus. The way I now translate the city location into a country location gives more dependable results. I then separated out the movement of the first and second editions into distinct chord diagrams. I also generated a new diagram for both editions (an updated version of the previous diagram).

As before, these chord diagrams are interactive: you can mouseover (or touch, if you are using a touch device) and get information about each country and each pathway between countries.

The three chord diagrams are available:

• First edition of Copernicus’s De Rev
• Second edition of Copernicus’s De Rev
• Both first and second editions of Copernicus’s De Rev

And as before, I am indebted to Steven Hall for his tutorials and code. See:

• Chord Diagrams in D3
• Interactive Chord Diagrams in D3